A shield connector A includes an inner conductor 20 shaped such that a resiliently displaceable locking spring 24 projects from an outer peripheral surface of a body portion 21 having an axial direction oriented in a front-rear direction, and a dielectric 30 for retaining and accommodating the inner conductor 20 inserted from behind. The dielectric 30 includes an accommodation chamber 31 for accommodating the body portion 21, a locking portion 36 for retaining the inner conductor 20 by being locked to the locking spring 24, and an escaping groove 37 formed by recessing only a region facing the locking spring 24 in a circumferential direction, out of an inner peripheral surface of the accommodation chamber 31.